Burner



J. B. SHERIDAN.

BURNER.

APPLICATIUN FILED SEPT 28, |920.

^ Patented Oct. 18, 1921.

NVENTOR W/TNE'SSES M. mf MM WVv E r .6, Vlr

UNITED STATES PATENT OFFICE.

BURNER.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application led September 28, 1.920. Serial No. 413,357.

To all f1.0 /tom t 'muy concern Be it known that I, J Amis B. SHERIDAN,a citizen of the United States, and a resident of Pittsburgh, in thecounty of Allegheny and State of Pennsylvania, have invented a new anduseful Improvement in Burners; and I do hereby declare the following tobe a full, clear, and exact description thereof.

My invention relates to improvements .in gas burners, and particularlyto burners used in gas cooking ranges.

It is a matter of common experience to users of gas stoves, particularlythose users dependent on natural gas, that the pressure in the gassupply lines varies to such an extent that with the stove burner valvesfully open only a small flame can be obtained. It has been found byexperiment that the most efficient heating of a gas flame in a stoveburner is obtainedby having the receptacle to be heated a small fractionof an inch above the tip of the flame. A difficulty encountered in theusual form of burner is that it is constructed so as to give eicientheating at ordinary pressures, but cannot be rendered effective when thepressure of the supply falls below (or rises above) the ordinary ornormal pressure.

It is the primary object of the present invention to provide a burneradaptable for cooking ranges which may be easily and simply moved withrelation to the support for holding a receptacle to be heated in suchmanner that the burner may be maintained at a position beneath thereceptacle most suited for giving the most efficient result at varyingpressures, and thus compensate to a great extent for the variations inpressure in the supply line.

My invention is also adapted for use when the gas pressure in the supplyis normal but the valve or cock controlling the flow of gas t0 theburner is not Wide open. By proper adjustment of the burner, an economyin fuel consumption coupled with higher efficiency may be effected.

My invention is shown in the accompanying` drawings, in which,

igure 1 is a side elevation of a form of my invention, showing itadjusted for low supply pressure or at a position where the valve (notshown) is only partially open;

Fig. 2 is a similar view of the adjusting elements showing the burnertube in position for normal or nearly normal supply;

Fig. 8 is a top view of the burner; and Fig. el shows a modificationwhich may be used.

In the drawings, A represents diagram-- matically the top of a stoveprovided with a burner opening, and B represents a kettle or receptacleto be heated.

Supported in any desired way beneath the top A of the stove is a mixertube 5 having a mixer 6 and a vertical portion T. Telescoping over thevertical end T of the mixer pipe 6 is a. burner pipe S having aneccentric 'or goose-necked portion 9, to the upper end of which issupported an air-ring burner 10.

Secured a suitable distance below the top of the vertical portion 7 ofthe mixer pipe 6 is a projecting pin 11. The lower end of thetelescoping part of the burner tube 8 is provided with a helical slot12, the upper edge 13 of which is provided with steps, while `the loweredge 111 is smooth. The pin l1 is adapted to engage the bottom of theburner tube, as shown in .F ig. 1, to hold the burner close to thereceptacle when the gas pressure is very low, or the control valve isturned to provide a low flame. Ey turning the burner tube 8, the pin 11may be brought into engagement with one of thehorizontal edges or flatsurfaces of the stepped portion 14, as shown in F ig. 2, and thusprovide for intermediate adjustment between entreme low pressures andeXtreme high ones, the end of the slot forming the adjustment for usewith the highest pressures.

By reason of the goose-neck or eccentric portion 9 of the burner tube,the ring burner, which is desirable for use in stoves because it permitspassage of air up through the middle of the burner, may always remaincentered beneath the burner opening in the top A, and concentric withthe vertical axis of the sliding connection.

In the modification shown in Fig. 4, I have shown similar telescopingmixer and burner tubes, but instead of using a slot and pin aspreviously described, I use a convolute disk 15 having its edgesflattened to form steps, which disk is pivoted to the vertical portion 7of the mixer tube. The lower end of the burner tube 8 rests on theuppermost of the fiat surfaces or steps on the edge of disk 15. Byturning the disk 15, for which purpose a button 16 may ,be provided, theburner tube may be raised or lowered.

Other modifications and changes may be suggested, and I do not limitmyself to the exact construction and arrangement of parts described inthe embodiments shown in the drawings, nor do I limit the application ofmy invention to use in cooking stoves, as obviously it may be useful inother heating de VlCeS.

l/Vhat I claim is:

l. An adjustable burner for stoves c0111- prising a mixing tube, aburner tube tele scoping with the mixing tube, an eccentric portion onthe burner tube supporting a ring burner in such manner that the ringburnermay be always centered over the telescoping connection, and meansior holding the burner tube in any one of a plurality or' adjustedpositions.

2. A burner comprising a burner ring, a burner tube connected to thering, a mixer tube communicating With the burner tube through avertically adjustable connection, means for holding the burner tube inany one of a plurality otadjusted positions, and means in the burnertube for holding the ring burner concentric with the vertical each oiwhich portions when in operative position holds the burner tube in adifferent vertical position, and means on the other tube for engagingthat. step of the series which is in operative position, whereby theburner tube may be selectively held in a plurality of differentpositions.

A burner comprising a vertically movable burner tube and a stationarymixer tube, a sliding telescoping connection between the burner tube andmixer tube, the telescoping end of the burner tube being provided with ahelically arranged slot, a pin on the mixer tube` adapted to engage theedges of the slot, and means on one edge or' the slot adapted to bebrought into selective engagement with said pin to support the burnertube in any one of a plurality yof different vertical positions.

6. A burner comprising a vertically movable burner tube and a stationaryVmixer tube, a sliding telescoping connection between the burner tubeiand the'mixer tube, the telescoping end of the burner tube beingprovided lWith a helically arranged slot, a pin on the mixer tubeadapted to engage the edges oit the slot, and a series of steps arrangedon the upper edge of said helical slot7 said steps being adapted forselectiveengagement with the pin to support the burner tube in any oneof a plurality of different vertical positions.

' In testimony Whereo't- I afix ,my signature in presence oftwoavitn'esses.

JAMES B, SHERIDAN.

'llf'itnesses Y VM. H. PARMELEE, Lois WINEMAN.

